Smooth Muscle Hyperplasia of the Testicular Adnexa Clinically Mimicking Neoplasia

Barton, Joel H.; Davis, Charles J.; Sesterhenn, Isabell A.; Mostofi, F. K.

doi:10.1097/00000478-199908000-00007

Cited by 30 publications

(27 citation statements)

References 21 publications

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“…1 Smooth muscle hyperplasia of the testicular adnexa usually occurs in older patients (age range, 46-81 years; mean age, 63 years). 1 The usual presentation is a scrotal mass.…”

Section: S Case Report Discussionmentioning

confidence: 99%

“…1 Smooth muscle hyperplasia of the testicular adnexa usually occurs in older patients (age range, 46-81 years; mean age, 63 years). 1 The usual presentation is a scrotal mass. [1][2][3] The cause of smooth muscle hyperplasia of the testicular adnexa is unknown.…”

Section: S Case Report Discussionmentioning

confidence: 99%

“…1 The usual presentation is a scrotal mass. [1][2][3] The cause of smooth muscle hyperplasia of the testicular adnexa is unknown.…”

Section: S Case Report Discussionmentioning

confidence: 99%

“…1 The cut surfaces are gray, white, pink, or ivory. 1 The maximum dimension has ranged from 6 mm to 7 cm (mean, 2.5 cm).…”

Section: S Case Report Discussionmentioning

confidence: 99%

“…1 The cut surfaces are gray, white, pink, or ivory. 1 The maximum dimension has ranged from 6 mm to 7 cm (mean, 2.5 cm). Microscopic examinations of smooth muscle hyperplasia of the testicular adnexa show increased smooth muscle fascicles arranged in a periductal, perivascular, or interstitial pattern.…”

Section: S Case Report Discussionmentioning

confidence: 99%

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Sonographic Findings of Smooth Muscle Hyperplasia of the Epididymis

Yang

Kim

Lee

et al. 2009

Journal of Ultrasound in Medicine

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mooth muscle hyperplasia of the epididymis is a rare condition and is seen as non-neoplastic proliferation of smooth muscle, which forms smooth muscle fascicles arranged in a periductal, perivascular, interstitial, or mixed pattern. 1Although several cases of smooth muscle hyperplasia of the epididymis have been described in the pathologic literature, 1-3 to the best of our knowledge, sonographic findings have not been described. We report the sonographic findings of a case of smooth muscle hyperplasia of the epididymis that presented as a solid mass. Case ReportA 47-year-old man was admitted with a 4-week history of a left scrotal mass. There was no history of genitourinary problems. A physical examination revealed the presence of a hard nontender mass in the tail of the left epididymis. The mass measured approximately 1 cm in diameter. The right testis and epididymis were normal. Scrotal sonography was performed with a 5-to 12-MHz linear array transducer attached to an iU22 scanner (Philips Healthcare, Bothell, WA). Gray scale sonography showed the presence of a well-defined solid mass in the left epididymal tail. The mass showed a heterogeneous echo texture with echogenicity similar to that of the adjacent testis and had a thin hypoechoic rim ( Figure 1A). On color Doppler sonography, no blood flow within the mass was depicted. An increase in perilesional blood flow was seen ( Figure 1B).The patient underwent surgical excision of the mass and a left epididymectomy. A gross pathologic examination showed a firm yellowish-whitish mass measuring 1 × 0.8 × 0.6 cm in the epididymal tail ( Figure 1C). A microscopic examination showed a proliferation of smooth muscle encasing dilated epididymal ducts (Figure 1, D and E). The pathologic diagnosis was smooth muscle hyperplasia of the epididymis.

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“…1 Smooth muscle hyperplasia of the testicular adnexa usually occurs in older patients (age range, 46-81 years; mean age, 63 years). 1 The usual presentation is a scrotal mass.…”

Section: S Case Report Discussionmentioning

confidence: 99%